BR9905874A - Método de testar rádios de telemetria em estradas férreas - Google Patents

Método de testar rádios de telemetria em estradas férreas

Info

Publication number
BR9905874A
BR9905874A BR9905874-0A BR9905874A BR9905874A BR 9905874 A BR9905874 A BR 9905874A BR 9905874 A BR9905874 A BR 9905874A BR 9905874 A BR9905874 A BR 9905874A
Authority
BR
Brazil
Prior art keywords
test
radios
tested
telemetry
testing
Prior art date
Application number
BR9905874-0A
Other languages
English (en)
Inventor
Hans Glista
Original Assignee
Westinghouse Air Brake Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Air Brake Co filed Critical Westinghouse Air Brake Co
Publication of BR9905874A publication Critical patent/BR9905874A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/29—Performance testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/15—Performance testing
    • H04B17/16—Test equipment located at the transmitter

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Radio Relay Systems (AREA)

Abstract

<B>MéTODO DE TESTAR RáDIOS DE TELEMETRIA EM ESTRADAS FéRREAS<D> Rádios de telemetria em estrada férrea são testados por um método automatizado para teste no local, de forma que somente aquelas unidades exigindo ajuste e manutenção são removidas. Um conjunto de teste de múltiplas funções é programado para automatizar o teste de rádios usados em um sistema de telemetria em conjunto com outro software de teste embutido nos dispositivos- hóspedes de telemetria. Os rádios contêm um transmissor e um receptor. Ambos são individualmente testados para verificar desempenho apropriado. O teste de sensibilidade do receptor do rádio é testado através de medições de taxa de erro de bits (BER) com um software de teste e um modulador BER dedicado. Uma mensagem conhecida de amplitude baixa compreendida de um padrão pseudo-aleatório curto continuamente repetido pelo modulador do conjunto de teste BER é demodulada pelo receptor do rádio. O software de teste processa os dados recebidos e conta o número de mensagens sem erro recebido durante um período específico. A sensibilidade do receptor é considerada aceitável se o número de mensagens corretas recebido for maior que um valor mínimo predeterminado. O desempenho do transmissor é testado medindo freq³ência de rádio (RF), freq³ência da portadora, freq³ência de modulação, potência de saída de RF e de desvio. O conjunto de teste é programado para automaticamente medir esses parâmetros, determinar se eles suprem as exigências mínimas, alertar o técnico sobre quando aprovar/reprovar e opcionalmente exibir dados do teste medidos para a utilização no reparo do rádio, se necessário, ou para propósitos estatísticos.
BR9905874-0A 1998-10-23 1999-10-22 Método de testar rádios de telemetria em estradas férreas BR9905874A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/177,383 US6216095B1 (en) 1998-10-23 1998-10-23 Automated in situ testing of railroad telemetry radios

Publications (1)

Publication Number Publication Date
BR9905874A true BR9905874A (pt) 2000-09-05

Family

ID=22648387

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9905874-0A BR9905874A (pt) 1998-10-23 1999-10-22 Método de testar rádios de telemetria em estradas férreas

Country Status (5)

Country Link
US (1) US6216095B1 (pt)
AU (1) AU752197B2 (pt)
BR (1) BR9905874A (pt)
CA (1) CA2281345C (pt)
ZA (1) ZA995907B (pt)

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CN101692630B (zh) * 2009-09-30 2012-08-22 航天东方红卫星有限公司 复杂电磁环境下星上无线接收系统灵敏度测试方法
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US9623884B2 (en) * 2009-11-13 2017-04-18 General Electric Company Method and system for independent control of vehicle
KR101735102B1 (ko) 2010-04-14 2017-05-25 삼성전자주식회사 이동통신 시스템에서 응용 서비스를 제공하는 방법 및 장치
US9199653B2 (en) 2010-10-13 2015-12-01 General Electric Company Communication system and method for communicating between vehicles of a vehicle consist
US8914167B2 (en) 2010-10-13 2014-12-16 General Electric Company Communication system for a rail vehicle and method for communicating with a rail vehicle
US10144440B2 (en) 2010-11-17 2018-12-04 General Electric Company Methods and systems for data communications
US9513630B2 (en) 2010-11-17 2016-12-06 General Electric Company Methods and systems for data communications
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Also Published As

Publication number Publication date
ZA995907B (en) 2000-04-04
US6216095B1 (en) 2001-04-10
CA2281345A1 (en) 2000-04-23
CA2281345C (en) 2002-05-14
AU752197B2 (en) 2002-09-12
AU5258699A (en) 2000-05-04

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Legal Events

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FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]